Swab.



H. P. BEAM.

SWAB.

APPLICATION FILED 020.11.1913.

I 1 1 m,2%, Patented Dec. 29, 1914. r

v 2 sn'nn'rs sunn'r 1. y' 36 v 56 10 INVENTOR H. F. BEAM.

-' v SWAB.

APPLICATION FILEDVDEOJI, 1913.

Patented Dec. 29, 1914.

2 SHBETS-SHEET 2.

INVENTCR B6d/WW s E s s E M w W orrren.

HOWARD I. BEAM, OF HARMONY, 1E1FNSYLVANIA, ASSIGN'OR OF ONE-HALF TOSAMUEL A.'.IBEAIM I, F HARMONY,,PEN1\TSYLVANIA.

' SWAB'.

ineaaae.

Specification of Letters Patent. P t m 29, 1 4

Application filed December 11, 1913. Serial ItIo. 806,072.

To all whom it may concern:

Be it known that I, HOWARD F. BEAM, a

citizen of the United States of America, re-

- tion, reference being had therein to the accompanying drawing.

This invention relates to swabs, and has for its object to provide adevice of such class, in a manner as'hereinafter set forth, for cleaningoil well casings and to so set up the device whereby it will be inoperative engagement only with the casing on the upstroke of the device.

A further object of the invention is to provide a swab for oil wells, ina manner as hereinafter set forth, with a plurality of expansibleswabbing members capable of be ing expanded, by the weight of the water,

when the device is elevated whereby on the upstroke, the device willperform its swabing or cleansing function. Further objects of theinvention are to provide an oil well swab which is simple in itsconstruction and arrangement, strong,

durable, efiicient and convenient in its use, formed of a plurality ofremovable and expansible swabbing elements, readily set up andcomparatively inexpensive to manufacture.

Withthe foregoing and other objects in view, the invention consists ofthe novel construction, combination and arrangement of parts ashereinafter more specifically described and illustrated in theaccompanying drawings, wherein is shown an embodiment of the invention,but it is to be understood that changes, variations and modificationscan be resorted to which come within the sco e of the claims hereuntoappended.

, aside elevation of a swabbing device in accordance with thisinvention, Fig. 2 is a vertlcal sectional view thereof, Fig. 3 1s avertical sectional view of amodified form,

Fig. 4 is a side elevation of the form shown in Fig. 3, Fig. 5 is a topplan of the form shown in Fig. 1, Figs. 6 and 7 aresectional viewsrespectively on line X-X and Y-Y eferring to Figs. land 2 of the drawings, 8 denotes a hollow cylindrical body portion having formed integralwith the top thereof .a bail 9 formed at its upper end with acylindrical enlargement 10 having peripheral threads 11 and a centrallydisposed opening 12. The body portion 8 at' its upper end is formed withperipheral-threads 13 and at its lower end with peripheral threads 14:.

The'inner face of the body portion 1 near the top thereof is threadedas'at 15, and the said inner face at its lower end is threaded as at 16.Engaging with the threads 15 is a check valve casing 17 and engagingwith the threads 16 is a check valve casing 18. Each of the check valvecasings is formed with an inlet 19 and a valve seat 20 for a sphericalvalve body 21. The upper end of each casing is closed through the mediumof a perforated disk 22, the perforations of the disk which areindicated by the reference character 23 constitute outlets for thecasing.

Mounted upon the threaded portion 14 is a supporting member 24, thelatter having interior threadsfor engagement with the threads 14 andsurrounding the body por tion 8 and mounted upon the supporting member24 is a'metallic spacing disk 25, upon which is mounted an expansibleand contractible swabbing member 26, preferably formed of rubber andformed with a chamber 27 and also having its upper face formed With aconcave recess 28. Positioned upon the member 27 is a metallic spacingdisk 29 having a depending portion 30, which extends into the recess 28.Positioned upon the disk 29 is an expansible and contractible swabbingmember 30 of the same construction as the member 26 and positioned uponthe member 31 is a metallic spacing disk 32 of the-same construction asthe disk 29. Engaging with the threads 13 is a clamping nut 33, thelatter abuts against the disk 32 and maintains the disks 25, 29, and 32and members 26 and 31 detachably clamped together and in position uponthe body portion 8. The disks 25, 29 and 32--are of less diameter thanthe members 26 and 31. As shown in the drawings, two members 26 and 31are employed, but it is .ob-

lower end thereof, is an annular member 34 having interior threads forengagement with the threads 14 and connected to the member 34 is acircumferentially extending series of wire scraping elements 35, thefunction of which is to scrape the oil well casing.

When the device is lowered, the water or other liquid or fluid will beforced up through the body portion 8, the check valves 21 opening forsuch purpose. When the device is elevated, the weight of the fluid willexpand the members 26, 31, so that the diameter thereof will increasewhereby the said members will perform a swabbing function during theelevation of the dev ice.

The oil well casing is indicated by the reference character 36 and byreference to Fig. 1, it will be noted that the normal diameter of themembers 26 and 31 is less than the diameter of the casing, under suchconditions the said members do not engage the casing when the device islowered, but

onl' en a e the casin when wei ht a ion b b O b the device will expandsaid members. The wires 35 engage the casing on the up and down strokeof the device.

By setting up the expansible members in themanner as stated, the lifethereof is increased due to the fact that the 'weanupon said members isonly had on the upstroke of the device. In devices now in general use,the swabbing elements are of a diameter to engage the casing on both theup and down strokes.

The swabbing elements are detachably mounted upon the body portion 8,whereby if one becomes injured or damaged it can be readily removed anda new one substituted, under such conditions disposing with the casingaside of the entire device and.

suc'h arrangement is a considerable saving.

Extending through the opening 13 is the shank 37 of an eye bolt, the eyeof the latter being indicated by the reference character 38. The shank37 carries anut 39 for connecting the eye bolt to the bail 9.

In Figs. 3 and 4 of the drawings, the body portion which is indicated bythe reference character 40 is of the same construction as the bodyportion 8, and mounted upon said body portion is a, supporting member 41and a retaining member 42 for the spacing disk and expa'nsible andcontractible swabbing members. and 4, the spacing disks are indicated bythe reference character 43 and are flat, while the swabbing members areindicated bythe reference character 44. The spacing disks 43 arealternately disposed with respect to the members 44. Each-ofthe'members44 is chambered as at 45, and each has its up per and itslower face upon an inclination from the center toward the outer edge ofthe member, the inclination of the upper In Figs. 3.

- form of the device shown in Figs. 3 and 4 is the same as that referredto in connection with the forms shown 1n F lgs. l and 2.

iVhat I cla m 1s 1. An oil well swabbing device comprising a hollow bodyportion, a series of spacing elements mounted thereon, a plurality ofexpansible and contractible swabbing elements mounted upon the bodyportion and alternately disposed with respect to said spacing elements,means for detachably securing said spacinn and swabbing elements to saidbody portion, and a scraping element secured to the lower end of saidbody portion.

2. An oil well swabbing device comprising a hollow body portion, aseries of spacing elements mounted thereon, a plurality of expansibleand contractible swabbing elements mounted upon the body portion andalternately disposedwith respect to said spacing elements, means fordetachably securing said spacing and swabbing elements to said bodyportion, a check valve mounted in said bod portion at the upper andlower end thereo and a scraping element secured to the lower end of saidbody portion.

3. An oil well swabbing device comprising a hollow body portion, aseries of spire-- ing elements mounted thereon, a plurality ofexpansible and contractible swabbing elements mounted upon the bodyportion and alternately disposed with respect to said spacing elements,means for detachably securingsaid spacing and swabbin elements to saidbody portion, said swabbing elements being hollow, anda scraping elementsecured to the lower end of said body portion.

4. An oil well swabbing device comprising a body portion, a plurality ofexpansible and contractible swabbing elements carried thereby andnormally of less diameter than the diameter of the oil well casing andexpanding to engage the casing by the weight upon said elements on theup-stroke ofthese latter, and a scraping device connected to the lowerend of the body.

.5. An oil well swabbing device comprising a body portion, an expansibleand contractible swabbing means carried thereby and normally oflessdiameter than the diameter of the oil well casing and expanding toengage said casing on the up-stroke of the device, and a scraping deviceconnected to the lower end of the body portion.

6. An oil well swabbing device comprising a valved body portion, aplurality of exupon the device when the device is'elevated,

swabbing elements and a scraping element connected to said body portion.e

7. An oil well swabbing device comprising a valved body portlon, spacingand re'movably mounted thereon, said swabbing elements alternatelydisposed with respect to said spacing elements and normally of lessdiameter than the diameter of the oil well casing and expending toengage the casing by the weight upon t e device when the latter is movedupwardly, and a scraping elementconnected to the body portion.

In'testimonyi whereof I afiix my signature in the presence of twowitnesses. I HOWARD F. BEAM. Witnesses: a I ALEXANDER F. HUMPHREY,CHARLES W. BEAM.

